A K-9 officer contacted a bicyclist for a traffic violation about 10:15 p.m. in the 900 block of South Seaward Avenue, Ventura police said.

The officer learned the bicyclist, Jacob Degrande, 43, of Ventura, was on probation for theft and forgery, authorities said. The officer then searched Degrande’s belongings.

The officer found a checkbook belonging to a Somis man and other evidence indicating Degrande used the checks to make fraudulent purchases at a Target store in Ventura, police said. Officers learned the Somis man had filed a theft report with the Ventura County Sheriff’s Office, officials said.

Degrande was arrested and booked into Ventura County jail on suspicion of possessing stolen property, commercial burglary, forgery and identity theft, police said.